Remove unused ldbl-96 functions (bug 15004)

[Andreas Jaeger]

On 11/28/2013 07:35 PM, Joseph S. Myers wrote:
> Bug 15004 reports an issue with sysdeps/ieee754/ldbl-96/e_atan2l.c, a
> file not used in any current glibc configuration.
> <https://sourceware.org/glibc/wiki/Development_Todo/Master#libm_projects>
> mentions another problem with ldbl-96 functions, rintl / nearbyintl
> implementations missing cleanup and simplification done to various
> other implementations for bugs 2547 and 2548.
> 
> This patch removes the ldbl-96 files that are unused because i386,
> x86_64, ia64 and m68k/m680x0 all have their own versions.  If someone
> adds future support for an architecture using ldbl-96 but without its
> own versions of these functions, obviously any required can be added
> back at that time, without or without further fixes for bugs in them
> that may be shown up by testing on such an architecture, but for now
> removing these files avoids needing to consider them in global changes
> where changes to these files can't readily be tested (and ldbl-96
> rather than ldbl-128 seems a rather odd choice for a new
> architecture).

ok, thanks,

Andreas
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